A General Method for Copper-Catalyzed Arylation of Arene C−H Bonds
作者:Hien-Quang Do、Rana M. Kashif Khan、Olafs Daugulis
DOI:10.1021/ja805688p
日期:2008.11.12
A generalmethod for copper-catalyzedarylation of sp (2) C-Hbonds with p K a's below 35 has been developed. The method employs aryl halide as the coupling partner, lithium alkoxide or K 3PO 4 base, and DMF, DMPU, or mixed DMF/xylenes solvent. A variety of electron-rich and electron-poor heterocycles such as azoles, caffeine, thiophenes, benzofuran, pyridine oxides, pyridazine, and pyrimidine can
Transition‐Metal‐Free Coupling of Polyfluorinated Arenes and Functionalized, Masked Aryl Nucleophiles
作者:Lucie Finck、Martin Oestreich
DOI:10.1002/chem.202101731
日期:2021.8.2
coupling of sufficiently electron-deficient fluorinatedarenes and functionalized N-aryl-N’-silyldiazenes as masked aryl nucleophiles is reported. The fluoride-promoted transformation involves the in situ generation of the aryl nucleophile decorated with various sensitive functional groups followed by a stepwise nucleophilic aromatic substitution (SNAr). These reactions typically proceed at room temperature
报道了足够缺电子的氟化芳烃和官能化的N-芳基-N'-甲硅烷基二氮烯作为掩蔽的芳基亲核试剂的化学选择性 C(sp 2 )-C(sp 2 ) 偶联。氟化物促进的转化涉及原位生成用各种敏感官能团修饰的芳基亲核试剂,然后逐步进行亲核芳族取代 (S N Ar)。这些反应通常在室温下在几分钟内进行。这种催化过程允许两个偶联伙伴的功能化,以良好的产率提供高度氟化的联芳基化合物。
COPPER-CATALYZED C-H BOND ARYLATION
申请人:Daugulis Olafs
公开号:US20090076266A1
公开(公告)日:2009-03-19
The present invention is a one-step method for efficiently converting carbon-hydrogen bonds into carbon-carbon bonds using a combination of aryl halides, a substrate, and a copper salt as catalyst. This method allows faster introduction of complex molecular entities, a process that would otherwise require many more steps. This invention is particularly relevant for the organic synthesis of complex molecules such as, but not limited to, pharmacophores and explosives.
The present application relates to a compound of a formula (I) which comprises a benzene group that is substituted with a group selected from carbazole derivatives and bridged amines and with an electron attracting group, wherein the two groups are located in the ortho-position in relation to one another. The present application further relates to the use of the compound of the formula (I) in an electronic device, and to a method of producing the compound of the formula (I).
The present application relates to a compound of a formula (I) which comprises a benzene group that is substituted with a group selected from carbazole derivatives and bridged amines and with an electron attracting group, wherein the two groups are located in the ortho-position in relation to one another. The present application further relates to the use of the compound of the formula (I) in an electronic device, and to a method of producing the compound of the formula (I).